Analytical Parameters for Determination of Ba, Cd, Pb, Sn, and Zn in the Investigated Samples
| Element | Matrix | Range (μg/L) | Regression Curve | R2 | LOD (μg/L) | Recovery (%) |
|---|---|---|---|---|---|---|
| Ba | Bags | 10–50 | y = (0.0030 + 0.0103x)/(1 + 0.010482x) | 0.9824 | 1.3 | 98.8 |
| NaCl/Glucose/Tween 80 | y = 0.0309 + 0.0128x | 0.9937 | 0.9 | 95.3 | ||
| Cd | Bags/NaCl/Glucose | 4–10 | y = 0.0367 + 0.0693x | 0.9849 | 0.9 | 96.9 |
| Tween 80 | y = 0.1589 + 0.0742x | 0.9527 | 0.9 | 118.5 | ||
| Pb | Bags/NaCl/Glucose | 10–50 | y = 0.0099 + 0.0067x | 0.9926 | 0.3 | 105.9 |
| Tween 80 | y = 0.0418 + 0.0116x | 0.9725 | 1.0 | 96.5 | ||
| Sn | Bags/Tween 80 | 10–50 | y = 0.0058 + 0.0024x | 0.9780 | 0.8 | 98.2 |
| NaCl | y = 0.0037 + 0.0022x | 0.9956 | 0.9 | 110.0 | ||
| Glucose | y = 0.0043 + 0.0028x | 0.9969 | 0.9 | 105.1 | ||
| Zn | Bags | 10–50 | y = 0.2213 + 0.0468x | 0.9557 | 0.2 | 105.9 |
| NaCl/Glucose | y = 0.0842 + 0.0076x | 0.9573 | 0.7 | 114.3 | ||
| Tween 80 | y = (0.7966 + 0.2994x)/(1 + 0.0292x) | 0.9930 | 0.9 | 111.0 |